Stop mechanism for type-writer-operating mechanism.



I. H'. PILL-INGS. v STOP MECHANISM FOR TYPE WRITER OPERATING MECHANISM.

APPLICATION FILED IULY I2. I9I5. I

, Patented 0ct.10,1916.

3 SHEETS-SHEET 1.

I I 1mm;

1. H. PILLIMGS. STOP MECHANISM FOR TYPE WRlTER OPERATING MECHANISM.

APPLICATI ON FILED JULY 12. I915.

Patented Oct. 10, 1916.

3 SHEETS-SHEET 2.

J. H. P|LLINGS. STOP MECHANISM FOR TYPE WRITER OPERATING MECHANISM. I

APPLICATION FILED JULY I2, I915. v

I Patented Oct. 10, 1916.-

a SHEETS-SHEET 3;

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EOHN I-I. vEIEZTJIBYGS, 0F HAMILTON, OHIO, ASSIGNQR TO THE NATIONAL AUTOMATIS TYPEW'EITEE COMPANY, OF HAMIL'IGN, OHIO, A CORPGBATION OF CI-l-"IO.

s'ror ianormmsm Fen TYPE-WRETER-GPERATING MECHANISM.

Specification of Letters Batent. Patigntgd @gt 1% 33.315

Application filed July 12, 1915. Serial No. 39,216.

of Ohio, have invented a certain new and useful Improvement in Stop Mechanism for Type Writer Operating Mechanism, of which the following is a full, clear, and exact description.

My prior application, filed May 15, 1915, series of 1915 No. 28,223, shows and describes the essential parts of a typewriter operating machine through the action of which aperforated controller strip may cause the selective operation, in proper sequence, of the keys and other'levers of an ordinarytypewriter; but still leave the typewriter in such condition that, without disconnecting any of its parts fromparts of the operating machine, the typewriter may be operated manually in the usual way. Such typewriter opcrating machines are intended to cause the typewriter to automatically print form letters. To render their use profitable, it must not be necessary for an attendant to constantly watch one of these machines in order that it may be stopped at the proper time. The attendant oughtto be able to attend to several of such machines; or, if there be but one, to profitably utilize the time while the machine is at work.

The present invention relates to means whereby a properly placed perforation in the controller strip will cause the typewriter operating machine to stop. This perforation may be placed at the end of the perforations which represent the form letter; or the perforation may be placed at such. pointon the controller strip that when a part only of the form letter has been printed, the typewriter operating machine will stop. The attendant may then, at his leisure, manually operate the typewriter and print into the form letter some special matter, as for example, something to give to the form letter a personal character; and this being done the attendant may then start the machine and allow it to cause the printing of the rest of the'form letter. It is obviously then necessary that if the machine is to be stopped before the printingof the form letter is completed it must be stopped quickly,

so that the' perforated controller strip will not bedrawn forward, while the machine is stopping, far enough to carry the firs perforation of the continuation of the form letter into operative position. Certain features of the invention as hereinafter described, are therefore designed espeoi ally not materially to stop the machine, bat to stop it quickly.

The invention consists in the construction and combination of parts shown in the drawing, hereinafter described and pointed out definitely in the appended claims;

In the drawings, Figure l is a side elevation partly sectioned and broken away of so much of a typewriter operating machine as is necessary to fully disclose the present invention. Fig. 2 is a plan view partlysectioned and partly broken away showing the present invention, and showing so much of the machinerof saidprior application as is necessary for an understainling of the present invention. Fig. 3 is a bottom view of the clutch mechanism when the clutch is set; Fig. 4.- is a similar view when the clutch is released; Fig. 5 is a front elevation of so much of the typewriter operating machine as embodies the present invention; and Fig.

6 is a perspective view of certain parts of said mechanism.

Referring to the parts by reference char-' acters, 10 and 11 represent respectively the two side frame members of the typewriter operating machine.

12 represents a longitudinally grooved roller over which the perforated strip 13 will be drawn as the roller turns.

14 represents one of the levers by which parts of the typewriter machine are actuated when they are themselves selectively actuated in accordance with the location of the perforations on said controller. strip. The roller 12 carries a worm wheel 12 which is engaged by a worm on the worm shaft 16. This latter shaft carries a bevel gear 17, which is engaged by a bevel'gear 18 fixed to the main driving shaft 20 of the machine, which shaft extends transversely and is mounted in hearings in the side frame member.

All of the above mentioned parts are or may be substantially like the corresponding parts shown and described in said prior ap-' plication.

On the end of the driving shaft-20 a clutch sleeve 21 is fixed. Ad acent thereto,

and rotatably mounted on saidshaft, is a pulley 22 having on its outer face an annular row of ratchet teeth 23. An electric motor 25 is fixed to the under side of .the machine frame. A belt 27 may transmit power from a pulley 26 on. the motor shaft to a counter shaft 28 on which two pulleys 29 and 30 are secured. A belt 31 transmits power from the pulley 30 to the driving'pulley 22 above mentioned. A clutch bolt 33 is slidably mounted in a groove in the clutch sleeve 21, and this bolt is under the influence of a.

, spring 34, which. acts to slide said bolt the controller strip 13 along beneath the pins 14 carried by the levers 14, and therey to bring perforations 13 in said controller strip beneath these pins. When a perforation comes beneath apin, the pin will drop through said perforation in one of the longitudinal groovesin said roll 12, and

thereupon this roll will move' the associated lever endwise into a position such that. the vertical reciprocating bar 19 will engage and rock it, and therefore cause the actuation of that partof the typewriter with which said lever is connected.

The lever 15 is like the levers 14 in construction and operation, and it carries a vertically movable pin 15* for engagement with the roll 12. Adjacent its s 'ront end it has a vertical slot 15 into whitli projects a pin 40 which extends laterally from the side of a key reed 4:0. The lower end of this reed .is connected with a-lever arm $1, or rather it is connected with a pin 4:1. by which this lever arm is connected with aswitch lever 42,which switch lever ispivoted on an axis which is coincident with the axis of the lever arm ll. The switch lever i2 is an electric switch adapted to go between two knife switch blades 43, it, to thereby complete the electrical connection between the motor and the source of electric current. a

The lever 41 is fixed to a rookshaft i5 which is mounted in one of the side frame members of the machine. Fixed to this same rock shaft just outside ofthe side frame member is a clutch stop arm 46 which normally occupies a position belowi and out of the range of the pin or lug 33 which is fixed to theclutch bolt 33 and pr jects radially out therefrom. The side of'this lever which is adjacent to this pin is beveledas at 1 and likewise the upper surface of this lever, as at 46*, is made convex, so that income 7 when the lever is rocked upward this surface may engage and act as a brake upon the cylindrical surface of said clutch sleeve.

When a perforation in the controller strip passes beneath the pin 15 of the lever 15, the mechanism as shown in said prior ap lication will cause the lever 15 to be roc ed in the direction which carries its front end down.

The upper end of the slot 15 will engage the pin 40*, and push down the reed 4:0. This will rock the arm 41, and the switch lever 42 downward. This downward movement of the switch lever will take it from between the knife blades, and therefore the motor will be disconnected from the power current. The downward movement of lever 41 will carry upward the arm 46 to a posi tion such that the pin 33* carried by the clutch bolt 33 will,as the shaft 20 continues to turn, engage the beveled surface at. This will cause the bolt to be pushed back and withdrawn from engagement .with the ratchet 33. Likewise, the lever 46 will apply a braking pressure to the peripheral surface of the clutch sleeve. The result will certainly be that the typewriter operating 'ierhaps the shutting off the current from the motor might produce this result alone. Perhaps the brake is not an absolute essential;- but hevertheless, it has been thought desirable that all three of these forces be employed to make it certain that the machine shall stop as required. The typewriter operating machinery having been stopped automatically, the operator may i now write into the form letter being printed on the typewriter such special matter as may be thought desirable. This having been done, the operator may pull up upon the key reed 40, and this will reverse the operation of the described parts; that is to say, the circuit to the motor will be completed, the braking pressure on the clutch sleeve will be withdrawn, and the bolt will be allowed to spring into engagement with the ratchet. Thereupon the typewriter operating mechanism will be set in motionagain.

A spring 49 is fixed to the lever 41, and

this acts to hold said lever down when once it has been moved down as above described, and it likewise acts to press the braking surface of the lever -16 against said clutch sleeve 21. This spring is used because the rocking movement of the lever 15- occupies only a very small fraction of time,.whereupon said lever 15 returns to its normal position: and the parts described might therefore move out of the position into which they have been moved were it not for this spring. When the parts are in their.

circuit between said motor and source of current, a driving shaft, a train of mechanism between saidelectric motor and driving shaft, a clutch which forms a part of said train ofmechanism, and means, adapted to be selectively caused to operate by a properly placed perforation in the controller strip, for simultaneously opening said electric switch and releasing said clutch.

2. In a typewriter operating machine organized to be controlled by the perforated controller strip, the'combinatio-n of an electric motor, an electric switch for closing the circuit between said motor and source of current, a driving shaft, a train of mechanism between said electric motor and driving shaft,-a clutch which forms a part of said train of mechanism, and a brake drum carried by said driving shaft, a brake for engaging said brake drum, and means, adapted to be selectively caused to operate by a properly placed perforation in said controller strip, for simultaneously opening the electric switch releasing said clutch and applying said brake.

In a typewriter operating machine organized to be controlled by a perforated controller strip, the combination of the driving shaft, a driving pulley loosely mounted on said shaft, a clutch for connecting said pulley and shaft, and means, adapted to be selectively caused'to operate by a properly placed perforation in said controller strip, for releasing said clutch. I

4;. In a typewriter operating machine or ga'nized to be controlled by a perforated controller strip, the combination of a driving shaft, a motor, a train of mechanism between said motor and driving shaft, a clutch which forms a partof said train of mecha tween said motor and driving shaft, a clutch which forms a part of said train of mechanisin, a lever adapted to be selectively caused to oper te by a properly placed perforation in said controller strip, said lever haviw near one end a vertical slot, a rock shaft,

a clutch releasing lever fixed to said rocli' shaft, an operati shaft, a key reed member, and a late to said reed which. eaten-i. s into fixed to the roclr.

slot.

6. In a typewriter operating machine organized to be controlled by a perfor troller strip,- the combination of a shaft having a sleeve fixed thereto, a driving pulley loosely mounted on said shaft adja- 8t cent said sleeve which pulley carries an annular row of teeth, a spring actuated sliding bolt mounted in said sleeve and adapted to engage said ratchet teeth, which bolt has a radially projecting lug, a rock shaft, a clutch.

operating lever fixed thereto having a beveled surface for engaging the lug carried by said bolt, an. operating arm fixed to said rock shaft, a lever adapted to be selectively caused to operate by a properly placed perso foration in said controller strip, and means whereby the rocking of this last mentioned lever acts .upon the operating arm fixed to said rock' shaft and thereby rocks the rock shaft and moves the clutch ative position.

,7. In a typewriter operating machine organized to be controlled by a perforated controller strip, the combination of a. driving shaft having a sleeve fixed thereto, a driving loo pulley loosely mounted on said shaft adgacent said sleeve which pulleycarries an annular row of teeth, a spring actuated sliding bolt mounted in said sleeve and adapted to engage said ratchet teeth, which bolt has a 165 radially projecting lug, a brake drum fixed to said driving shaft, a rock shaft, a clutch operating lever fixed thereto having a bow eled surface for engaging the lug carried by said bolt, and having a concave braking surface for engaging said brake drum, an operating arm fixed to said rock shaft, a lever adapted to be selectively caused to operate by a properly placedperforation in said con troller strip, and means whereby the reciting:

JOHN H. PILLKNGS.

\Vitnesses: i

A. F. Kinrnn, \A. H. Lorna.

lever into operas 

